Question detail
What is potassium chloride obtained from?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
The Haber process and the use of NPK fertilisers
Question
- A. Mining
- B. Chemical synthesis
- C. Natural evaporation
- D. Agricultural waste
Answer
The correct option is Mining. This answer is correct because it matches the approved learning objective to recall that potassium chloride and potassium sulfate are obtained by mining. (Chemistry only) in the subtopic Production and uses of NPK fertilisers.
Explanation
The correct option is Mining. Mining is correct because it directly supports the approved learning objective to recall that potassium chloride and potassium sulfate are obtained by mining. (Chemistry only). This belongs to the subtopic Production and uses of NPK fertilisers within The Haber process and the use of NPK fertilisers, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Production and uses of NPK fertilisers.
Common mistake
Confusing Sources of Potassium
Students often confuse potassium chloride and potassium sulfate as being obtained from different sources rather than both being mined.
Remember that both potassium chloride and potassium sulfate are obtained through mining processes.
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